Lev Walkin | 4eceeba | 2007-07-23 06:48:26 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 2 | #include <assert.h> |
| 3 | |
Lev Walkin | 4eceeba | 2007-07-23 06:48:26 +0000 | [diff] [blame] | 4 | #include <per_support.h> |
| 5 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 6 | static void |
| 7 | check_per_decoding() { |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 8 | uint8_t buf[] = { 0xB7, 0x19, 0x2F, 0xEE, 0xAD }; |
| 9 | uint8_t tmpbuf[10]; |
| 10 | int32_t z; |
| 11 | asn_per_data_t pos; |
Lev Walkin | fe3dc60 | 2007-06-24 08:47:29 +0000 | [diff] [blame] | 12 | memset(&pos, 0, sizeof(pos)); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 13 | |
| 14 | pos.buffer = buf; |
| 15 | pos.nboff = 0; |
| 16 | pos.nbits = sizeof(buf) * 8; |
| 17 | |
| 18 | z = per_get_few_bits(&pos, 32); |
| 19 | assert(z == -1); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 20 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 21 | |
| 22 | z = per_get_few_bits(&pos, 0); |
| 23 | assert(z == 0); |
| 24 | assert(pos.nboff == 0); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 25 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 26 | |
| 27 | z = per_get_few_bits(&pos, 1); |
| 28 | assert(z == 1); |
| 29 | assert(pos.nboff == 1); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 30 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 31 | |
| 32 | z = per_get_few_bits(&pos, 2); |
| 33 | assert(z == 1); |
| 34 | assert(pos.nboff == 3); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 35 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 36 | |
| 37 | z = per_get_few_bits(&pos, 2); |
| 38 | assert(z == 2); |
| 39 | assert(pos.nboff == 5); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 40 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 41 | |
| 42 | z = per_get_few_bits(&pos, 3); |
| 43 | assert(z == 7); |
| 44 | assert(pos.nboff == 8); |
| 45 | assert(pos.nbits == sizeof(buf) * 8); |
| 46 | |
| 47 | z = per_get_few_bits(&pos, 8); |
| 48 | assert(z == 0x19); |
| 49 | assert(pos.nboff == 8); |
| 50 | assert(pos.nbits == (sizeof(buf) - 1) * 8); |
| 51 | |
| 52 | z = per_get_few_bits(&pos, 1); |
| 53 | assert(z == 0); |
| 54 | assert(pos.nboff == 1); |
| 55 | assert(pos.nbits == (sizeof(buf) - 2) * 8); |
| 56 | |
| 57 | z = per_get_few_bits(&pos, 3); |
| 58 | assert(z == 2); |
| 59 | assert(pos.nboff == 4); |
| 60 | assert(pos.nbits == (sizeof(buf) - 2) * 8); |
| 61 | |
| 62 | z = per_get_few_bits(&pos, 8); |
| 63 | assert(z == 254); |
| 64 | assert(pos.nboff == 12); |
| 65 | |
| 66 | pos.buffer = buf; |
| 67 | pos.nboff = 2; |
| 68 | pos.nbits = sizeof(buf) * 8; |
| 69 | z = per_get_few_bits(&pos, 24); |
| 70 | assert(z == 14443711); |
| 71 | |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 72 | /* Get full 31-bit range */ |
| 73 | pos.buffer = buf; |
| 74 | pos.nboff = 7; |
| 75 | pos.nbits = sizeof(buf) * 8; |
| 76 | z = per_get_few_bits(&pos, 31); |
| 77 | assert(z == 1179384747); |
| 78 | |
| 79 | /* Get a bit shifted range */ |
| 80 | pos.buffer = buf; |
| 81 | pos.nboff = 6; |
| 82 | pos.nbits = sizeof(buf) * 8; |
| 83 | z = per_get_few_bits(&pos, 31); |
| 84 | assert(z == 1663434197); |
| 85 | |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 86 | pos.buffer = buf; |
| 87 | pos.nboff = 0; |
| 88 | pos.nbits = sizeof(buf) * 8; |
| 89 | z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8); |
| 90 | assert(z == 0); |
| 91 | assert(buf[0] == tmpbuf[0]); |
| 92 | assert(buf[1] == tmpbuf[1]); |
| 93 | assert(buf[2] == tmpbuf[2]); |
| 94 | assert(buf[3] == tmpbuf[3]); |
| 95 | assert(buf[4] == tmpbuf[4]); |
| 96 | |
| 97 | pos.buffer = buf; |
| 98 | pos.nboff = 1; |
| 99 | pos.nbits = sizeof(buf) * 8; |
| 100 | z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8); |
| 101 | assert(z == -1); |
| 102 | |
| 103 | pos.buffer = buf; |
| 104 | pos.nboff = 1; |
| 105 | pos.nbits = sizeof(buf) * 8; |
| 106 | z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8 - 1); |
| 107 | assert(z == 0); |
| 108 | assert(tmpbuf[0] == 110); |
| 109 | assert(tmpbuf[1] == 50); |
| 110 | assert(tmpbuf[2] == 95); |
| 111 | assert(tmpbuf[3] == 221); |
| 112 | assert(tmpbuf[4] == 90); |
| 113 | |
| 114 | pos.buffer = buf; |
| 115 | pos.nboff = 1; |
| 116 | pos.nbits = sizeof(buf) * 8; |
| 117 | z = per_get_many_bits(&pos, tmpbuf, 1, sizeof(buf) * 8 - 1); |
| 118 | assert(z == 0); |
| 119 | assert(tmpbuf[0] == 55); |
| 120 | assert(tmpbuf[0] != buf[0]); |
| 121 | assert(tmpbuf[1] == buf[1]); |
| 122 | assert(tmpbuf[2] == buf[2]); |
| 123 | assert(tmpbuf[3] == buf[3]); |
| 124 | assert(tmpbuf[4] == buf[4]); |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 125 | } |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 126 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 127 | static int Ignore(const void *data, size_t size, void *op_key) { |
| 128 | return 0; |
| 129 | } |
| 130 | |
| 131 | static void |
| 132 | check_per_encoding() { |
| 133 | asn_per_outp_t po; |
Lev Walkin | 0bcb49d | 2006-09-18 21:36:30 +0000 | [diff] [blame] | 134 | int ret; |
| 135 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 136 | po.buffer = po.tmpspace; |
| 137 | po.nboff = 0; |
| 138 | po.nbits = 0; |
| 139 | po.outper = Ignore; |
| 140 | po.op_key = 0; |
| 141 | po.tmpspace[0] = 0xff; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 142 | |
| 143 | ret = per_put_few_bits(&po, 0, 0); |
| 144 | assert(ret == 0); |
| 145 | assert(po.nboff == 0); |
| 146 | assert(po.buffer == po.tmpspace); |
| 147 | assert(po.tmpspace[0] == 0xff); |
| 148 | |
| 149 | ret = per_put_few_bits(&po, 0, 1); |
| 150 | assert(ret == 0); |
| 151 | assert(po.nboff == 1); |
| 152 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 153 | assert(po.buffer == po.tmpspace); |
| 154 | assert(po.tmpspace[0] == 0x00); |
| 155 | |
| 156 | ret = per_put_few_bits(&po, 1, 1); |
| 157 | assert(ret == 0); |
| 158 | assert(po.nboff == 2); |
| 159 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 160 | assert(po.buffer == po.tmpspace); |
| 161 | assert(po.tmpspace[0] == 0x40); |
| 162 | |
| 163 | ret = per_put_few_bits(&po, 1, 1); |
| 164 | assert(ret == 0); |
| 165 | assert(po.nboff == 3); |
| 166 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 167 | assert(po.buffer == po.tmpspace); |
| 168 | assert(po.tmpspace[0] == 0x60); |
| 169 | |
| 170 | ret = per_put_few_bits(&po, 15, 5); |
| 171 | assert(ret == 0); |
| 172 | assert(po.nboff == 8); |
| 173 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 174 | assert(po.buffer == po.tmpspace); |
| 175 | assert(po.tmpspace[0] == 0x6F); |
| 176 | |
| 177 | ret = per_put_few_bits(&po, 0xf0ff, 16); |
| 178 | assert(ret == 0); |
| 179 | assert(po.nboff == 16); |
| 180 | assert(po.nbits == 8 * sizeof(po.tmpspace) - 8); |
| 181 | assert(po.buffer == po.tmpspace + 1); |
| 182 | assert(po.tmpspace[0] == 0x6F); |
| 183 | assert(po.tmpspace[1] == 0xf0); |
| 184 | assert(po.tmpspace[2] == 0xff); |
| 185 | |
| 186 | po.nboff--; |
| 187 | |
| 188 | ret = per_put_few_bits(&po, 2, 1); |
| 189 | assert(ret == 0); |
| 190 | assert(po.nboff == 8); |
| 191 | assert(po.nbits == 8 * sizeof(po.tmpspace) - 16); |
| 192 | assert(po.buffer == po.tmpspace + 2); |
| 193 | assert(po.tmpspace[0] == 0x6F); |
| 194 | assert(po.tmpspace[1] == 0xf0); |
| 195 | assert(po.tmpspace[2] == 0xfe); |
| 196 | |
| 197 | ret = per_put_few_bits(&po, 2, 32); |
| 198 | assert(ret == -1); |
| 199 | |
| 200 | ret = per_put_few_bits(&po, 2, -1); |
| 201 | assert(ret == -1); |
| 202 | |
| 203 | ret = per_put_few_bits(&po, -1, 31); |
| 204 | assert(ret == 0); |
| 205 | assert(po.nboff == 31); |
| 206 | assert(po.nbits == 8 * sizeof(po.tmpspace) - 24); |
| 207 | assert(po.buffer == po.tmpspace + 3); |
| 208 | assert(po.tmpspace[0] == 0x6F); |
| 209 | assert(po.tmpspace[1] == 0xf0); |
| 210 | assert(po.tmpspace[2] == 0xfe); |
| 211 | assert(po.tmpspace[3] == 0xff); |
| 212 | assert(po.tmpspace[4] == 0xff); |
| 213 | assert(po.tmpspace[5] == 0xff); |
| 214 | assert(po.tmpspace[6] == 0xfe); |
| 215 | |
Lev Walkin | 109ade5 | 2010-10-24 20:48:05 -0700 | [diff] [blame] | 216 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 217 | |
Lev Walkin | 109ade5 | 2010-10-24 20:48:05 -0700 | [diff] [blame] | 218 | static void |
| 219 | check_per_encoding_sweep_with(uint8_t buf[], int already_bits, int add_bits) { |
| 220 | size_t buf_size = 8; |
| 221 | asn_per_data_t pos; |
| 222 | asn_per_outp_t out; |
| 223 | int32_t d_already; |
| 224 | int32_t d_add; |
| 225 | int32_t d_left; |
| 226 | int left_bits; |
| 227 | int i; |
| 228 | |
| 229 | memset(&pos, 0, sizeof(pos)); |
| 230 | pos.buffer = buf; |
| 231 | pos.nboff = 0; |
| 232 | pos.nbits = buf_size * 8; |
| 233 | |
| 234 | memset(&out, 0, sizeof(out)); |
| 235 | out.buffer = out.tmpspace; |
| 236 | out.nbits = 8 * sizeof(out.tmpspace); |
| 237 | assert(sizeof(out.tmpspace) >= buf_size); |
| 238 | memcpy(out.buffer, buf, buf_size); |
| 239 | |
| 240 | d_already = per_get_few_bits(&pos, already_bits); |
| 241 | d_add = per_get_few_bits(&pos, add_bits); |
| 242 | |
| 243 | per_put_few_bits(&out, d_already, already_bits); |
| 244 | per_put_few_bits(&out, d_add, add_bits); |
| 245 | if(out.nboff % 8) { |
| 246 | left_bits = 8 - (out.nboff % 8); |
| 247 | d_left = per_get_few_bits(&pos, left_bits); |
| 248 | } else { |
| 249 | left_bits = 0; |
| 250 | d_left = 0; |
| 251 | } |
| 252 | per_put_few_bits(&out, d_left, left_bits); |
| 253 | assert(0 == (out.nboff % 8)); |
| 254 | |
| 255 | if(0 != memcmp(out.tmpspace, buf, buf_size)) { |
| 256 | printf("IN: "); |
| 257 | for(i = 0; i < buf_size; i++) |
| 258 | printf(" %02x", buf[i]); |
| 259 | printf("\nOUT:"); |
| 260 | for(i = 0; i < buf_size; i++) |
| 261 | printf(" %02x", out.tmpspace[i]); |
| 262 | printf(" (out{nboff=%d,left=%d,%02x})\n", (int)out.nboff, left_bits, (int)d_left); |
| 263 | assert(0 == memcmp(out.tmpspace, buf, buf_size)); |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | static void |
| 268 | check_per_encoding_sweep() { |
| 269 | uint8_t buf[3][8] = { |
| 270 | { 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA }, |
| 271 | { 0xB7, 0x19, 0x2F, 0xEE, 0xAD, 0x11, 0xAA, 0x55 }, |
| 272 | { 0xEE, 0xAD, 0x11, 0xAA, 0x55, 0xB7, 0x19, 0x2F } |
| 273 | }; |
| 274 | int already_bits; |
| 275 | int add_bits; |
| 276 | int buf_idx; |
| 277 | |
| 278 | for(buf_idx = 0; buf_idx < 3; buf_idx++) { |
| 279 | for(already_bits = 0; already_bits < 24; already_bits++) { |
| 280 | for(add_bits = 0; add_bits <= 31; add_bits++) { |
| 281 | /*fprintf(stderr, "PER %d += %d\n", already_bits, add_bits);*/ |
| 282 | check_per_encoding_sweep_with(buf[buf_idx], already_bits, add_bits); |
| 283 | } |
| 284 | } |
| 285 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | int |
| 289 | main() { |
| 290 | check_per_decoding(); |
| 291 | check_per_encoding(); |
Lev Walkin | 109ade5 | 2010-10-24 20:48:05 -0700 | [diff] [blame] | 292 | check_per_encoding_sweep(); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 293 | return 0; |
| 294 | } |